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Method for extracting pigment by using plant ash method

A plant ash and pigment technology, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of low extraction efficiency and long pigment extraction time, and achieve the effect of simple operation method and low cost

Active Publication Date: 2018-11-23
AIMER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although plant ash is also alkaline in aqueous solution, which provides alkaline conditions for its multi-ion composite environment, but alkaline only provides environmental conditions
In many patents or documents, the pigment extraction time is long and the extraction efficiency is not high. The pigment extraction method proposed in this patent has been used in the development of industrial products such as wool, cashmere scarves, and shawls dyed with natural dyes.

Method used

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  • Method for extracting pigment by using plant ash method
  • Method for extracting pigment by using plant ash method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The application discloses a method for extracting pomegranate peel pigment by plant ash method, comprising the following steps:

[0025] Take 2g of pomegranate peel, after cleaning, put it in an oven and dry it at 55-65°C until the moisture content is less than 15%, cool it at room temperature, pass through a 20-mesh sieve after crushing, and store the pomegranate peel powder in a dry environment for later use;

[0026] Weigh 0.6g of plant ash and place it in a container, add 100-400ml of deionized water into the container, put the container in a water bath constant temperature oscillator and heat for 20-45min, set the temperature to 60-90°C, and set the oscillation frequency to 80r / min , the prepared plant ash solution was cooled to room temperature, allowed to stand for 10-15 minutes, and undissolved impurities were filtered out;

[0027] Add 2g of pomegranate peel powder into the container of the plant ash solution prepared above, place the container in a constant te...

Embodiment 2

[0031] The application discloses a method for extracting pomegranate peel pigment by plant ash method, comprising the following steps:

[0032] Take 2g of pomegranate peel, after cleaning, put it in an oven and dry it at 55-65°C until the moisture content is less than 15%, cool it at room temperature, pass through a 20-mesh sieve after crushing, and store the pomegranate peel powder in a dry environment for later use;

[0033] Weigh 0.12g of plant ash and place it in a container, add 200ml of deionized water into the container, put the container in a water bath constant temperature oscillator and heat for 20-45min, set the temperature at 60-90°C, and set the oscillation frequency at 80r / min. The resulting plant ash solution was cooled to room temperature, allowed to stand for 10-15 minutes, and undissolved impurities were filtered out;

[0034] Add 2g of pomegranate peel powder to the container of plant ash solution prepared above and the container of alkaline aqueous solution...

Embodiment 3

[0037] Embodiment 3 is different from the method for extracting pomegranate peel pigment in Example 1 in that embodiment 3 adopts an ultrasonic-assisted method when extracting pomegranate peel pigment, specifically as follows, a method for extracting pigment by plant ash method disclosed in Example 3, including Follow the steps below:

[0038] Take 2g of pomegranate peel, after cleaning, put it in an oven and dry it at 55-65°C until the moisture content is less than 15%, cool it at room temperature, pass through a 20-mesh sieve after crushing, and store the pomegranate peel powder in a dry environment for later use;

[0039] Weigh 0.6g of plant ash and place it in a container, add 100-400ml of deionized water into the container, put the container in a water bath constant temperature oscillator and heat for 20-45min, set the temperature to 60-90°C, and set the oscillation frequency to 80r / min , the prepared plant ash solution was cooled to room temperature, allowed to stand for...

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Abstract

The invention belongs to the technical field of pigment extraction in natural raw materials and particularly relates to a method for extracting pigment by using a plant ash method. The method comprises the following steps: step one, treatment of pomegranate peel: washing, crushing and drying the pomegranate peel for later use; step two, preparation of a plant ash solution weighing plant ash of which the weight is 6 to 30 percent of pomegranate peel powder, and adding deionized water into a container containing the plant ash according to the solid-liquid ratio of the pomegranate peel powder tothe deionized water being (1 to 50) to 200(g / ml); step three, pigment extraction: adding the pomegranate peel powder into the plant ash solution for uniform stirring, putting the container in a thermostat water bath for extracting the pigment to obtain an extracting solution; concentrating and carrying out spray drying to obtain pomegranate peel pigment. By adopting the plant ash method to extract the pomegranate peel pigment, the mass percent of pigment extraction is 4.2 to 21.0 percent; the method has the advantages of environment-friendly and pollution-free extraction process, simple operation method and low cost of extracting pomegranate peel pigment.

Description

technical field [0001] The invention belongs to the technical field of pigment extraction from natural raw materials, and in particular relates to a method for extracting pigment by plant ash method. Background technique [0002] With the development of society and people's concern about their own health, more and more attention has been paid to the harm of some synthetic dyes to human health and the damage to the ecological environment. Studies have shown that there are more than 100 commonly used synthetic dyes that may produce carcinogens. Not only that, with the consumption of the earth's oil resources, the problem of raw materials for synthetic dyes has been exposed. Therefore, researchers have begun to devote themselves to the development of natural and environmentally friendly dyes and environmentally friendly and clean dyeing processes. Natural dyes have a good affinity with the environment, and waste, wastewater It is easy to decompose, the resources can be recycle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 秦晓霞王越平王海建
Owner AIMER CO LTD
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